Quick change chuck

a chuck and quick technology, applied in the direction of chucks, manufacturing tools, mechanical equipment, etc., can solve the problems of time-consuming and difficult use of a key for securing and releasing a bit in a chuck, chucks can be difficult to adjust, and none of these proposed chucks have proved completely satisfactory, etc., to achieve cost-effective manufacturing and rugged

Inactive Publication Date: 2005-01-18
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention satisfies the needs of the prior art with a chuck, a clutch assembly, and an associated method for releasably gripping a bit. The chuck includes a jaw assembly that can accommodate different bits and a threaded shaft for actuating the jaw assembly. Clutch members can be adjusted without the use of tools to threadably engage a drive body to the shaft or disengage the drive body from the shaft. The clutch members can be adjusted quickly, and an operator can use a single hand to adjust the chuck and change the bit. Additionally, the chuck is cost-efficient to manufacture and rugged.

Problems solved by technology

The use of a key for securing and releasing a bit in a chuck can be time consuming and difficult, often requiring the use of two hands.
Additionally, if the key is lost, the chuck can be difficult to adjust.
However, none of these proposed chucks has proven completely satisfactory, as evident by the continued use of keyed chucks.

Method used

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Examples

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Embodiment Construction

The present inventions now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, these inventions may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like numbers refer to like elements throughout.

A keyless drill chuck 10 according to one embodiment of the present invention is shown in FIGS. 1-4A. As shown in FIGS. 3-4A, the chuck 10 includes a jaw assembly 20 for gripping a bit (not shown), a threaded shaft 50 capable of adjusting the jaw assembly 20, a clutch assembly 70 capable of threadably engaging the threaded shaft 50, and a rotatable carrier 90 in rotatable communication with the clutch assembly 70. The carrier 90 can be attached to a rotatable drive member (not shown), which rotates the carrier 90 and...

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PUM

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Abstract

There is provided a keyless chuck, a clutch assembly, and an associated method for releasably gripping a bit. The chuck includes a jaw assembly that is adjustable between open and closed positions, a threaded shaft in operable communication with the jaw assembly, and at least one clutch member. Each clutch member is adjustable between an engaged position and a disengaged position. In the engaged position, each clutch member threadably engages the threaded shaft, such that the threaded shaft translates axially and adjusts the jaw assembly between the open and closed positions.

Description

BACKGROUND OF THE INVENTION1) Field of the InventionThe present invention relates to chucks for gripping bits, such as standard shank drill bits. More particularly, the present invention relates to adjustable chucks for gripping bits such that the bits can be secured during a work process and released thereafter without the use of a key and without requiring two hands.2) Description of Related ArtChucks are used to secure a bit, or work tool, in a machine. For example, many drills, lathes, screwdrivers, and routers include chucks that can hold any of a number of different bits such as drill bits, screwdriving bits, router bits, and the like. For a rotational tool, such as a drill, the chuck must hold the bit in rotational communication with a handle or motor such that the bit is rotated as the handle or motor rotates. Additionally, many chucks also secure the bit axially so that the bit cannot be inadvertently removed from the chuck, for example, while backing a drill bit out of a w...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B23B31/12
CPCB23B31/1253B23B2231/38Y10T279/17598Y10S279/902Y10T279/17615B23B2260/12
Inventor SCHROEDER, MONTE L.
Owner THE BOEING CO
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